Articles with "velocity estimation" as a keyword



Gyro-less angular velocity estimation and intermittent attitude control of spacecraft using coarse-sensors based on geometric analysis

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Published in 2020 at "Aerospace Science and Technology"

DOI: 10.1016/j.ast.2020.105900

Abstract: Abstract Gyro-less angular velocity estimation is significant for the attitude control of spacecraft when the gyro is unavailable. The paper considered that the angular velocity remains almost constant in a short free-motion period, indicating that… read more here.

Keywords: attitude control; angular velocity; velocity; velocity estimation ... See more keywords

A new optical flow model for motor unit conduction velocity estimation in multichannel surface EMG

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Published in 2017 at "Computers in biology and medicine"

DOI: 10.1016/j.compbiomed.2017.02.006

Abstract: Many studies have demonstrated the feasibility and benefits of Conduction Velocity (CV) estimation from surface electromyograms (EMGs) in various experimental conditions. Among them, a method based on optical flow was proposed recently, demonstrating relatively accurate… read more here.

Keywords: estimation; emg; velocity estimation; conduction velocity ... See more keywords

Phase unwrapping methods for solving the ambiguity in current velocity estimation based on combined signal design

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Published in 2018 at "Flow Measurement and Instrumentation"

DOI: 10.1016/j.flowmeasinst.2017.12.001

Abstract: Abstract Acoustic Doppler Current Profiler (ADCP) due to the Doppler principle is a powerful instrument for the current velocity measurement, where the complex autocorrelation function is a commonly used method to estimate the Doppler frequency… read more here.

Keywords: phase unwrapping; phase; current velocity; velocity estimation ... See more keywords

Angular velocity estimation from incremental encoder measurements in the presence of sensor imperfections

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Published in 2017 at "IFAC-PapersOnLine"

DOI: 10.1016/j.ifacol.2017.08.1260

Abstract: Abstract In the area of traction and brake control, measurements of the rotational velocity of the wheels are often affected by large periodic disturbances that arise from sensor imperfections and degrade the performance of any… read more here.

Keywords: sensor imperfections; angular velocity; velocity; velocity estimation ... See more keywords

Velocity estimation of flexible dynamics systems using virtual sensing.

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Published in 2020 at "ISA transactions"

DOI: 10.1016/j.isatra.2020.10.017

Abstract: In this paper, multiple virtual sensors derived from the equations of motion of a flexible dynamics system, are utilized to form a novel virtual sensing system able to estimate the angular and translation velocities. Measuring… read more here.

Keywords: velocity estimation; estimation flexible; sensing; virtual sensing ... See more keywords

Ultrasensitive velocity estimation via cyclic weak measurement

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Published in 2020 at "Optics Communications"

DOI: 10.1016/j.optcom.2019.125117

Abstract: Abstract The weak-value-amplification technique has been shown to be advantageous for precision metrology. Previous weak-value-based applications have used only a small fraction of data while discarding the rest during post-selection. Here we consider the use… read more here.

Keywords: weak value; velocity estimation; velocity; ultrasensitive velocity ... See more keywords

Full 2D optimized window coefficients for improved range velocity estimation in 5G joint communication and sensing

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Published in 2024 at "International Journal of Microwave and Wireless Technologies"

DOI: 10.1017/s1759078724001119

Abstract: This work presents an approach for optimization of window coefficients for 5G user equipment side sensing, using orthogonal frequency division multiplexing radar-based range and velocity estimation, based on the sounding reference signal (SRS) from the… read more here.

Keywords: window coefficients; velocity estimation; velocity; range velocity ... See more keywords

TIVelo: RNA velocity estimation leveraging cluster-level trajectory inference

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Published in 2025 at "Nature Communications"

DOI: 10.1038/s41467-025-61628-x

Abstract: RNA velocity inference is a valuable tool for understanding cell development, differentiation, and disease progression. However, existing RNA velocity inference methods typically rely on explicit assumptions of ordinary differential equations (ODE), which prohibits them from… read more here.

Keywords: cluster level; velocity estimation; rna velocity; inference ... See more keywords

Complex-Valued Channel Attention and Application in Ego-Velocity Estimation With Automotive Radar

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Published in 2021 at "IEEE Access"

DOI: 10.1109/access.2021.3054368

Abstract: Attention mechanisms have been widely integrated with various neural networks to boost performance. However, when an attention mechanism was applied to a radar ego-velocity estimation network, the importance of carefully handling the amplitude and phase… read more here.

Keywords: complex valued; attention; velocity estimation; ego velocity ... See more keywords

Radial Velocity Estimation for Multiple Objects Using In-Air Sonar With MIMO Virtual Arrays

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Published in 2023 at "IEEE Access"

DOI: 10.1109/access.2022.3154395

Abstract: As autonomous platforms become more advanced, it is useful to obtain more information about the environment. Classic vision sensors such as RGB-D cameras, LiDAR, or acoustical imaging cameras are capable of accurately displaying the location… read more here.

Keywords: velocity estimation; multiple objects; velocity; objects using ... See more keywords

Human Velocity Estimation Using Kalman Filter and Least Squares With Adjustable Window Sizes for Mobile Robots

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Published in 2024 at "IEEE Access"

DOI: 10.1109/access.2024.3432590

Abstract: For autonomous mobile robots to work safely in human-coexistent environments, human-velocity estimation is essential. However, the human body periodically fluctuates to the front, rear, right, and left while walking. Also, a significant estimation error occurs… read more here.

Keywords: velocity estimation; mobile robots; human velocity; window sizes ... See more keywords